Apparatus for hydraulic massage



AprilA 19, 1932.

M. PAvLov l 1,855,1.14

APPARATUS FOR HYDRAULIC MASSAGE FiledJan. 25, 1930 s, sheets-sheet 1 'Ela" ylf uf im qd L j' Z2 1 YI ci c v2 hl' n @gr/i1 y g2- o, A

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M. PAvLov 1,855,114

APPARATUS FOR HYDRAULIC MASSAGE A l Filed Jan. 2:5. 1930 s lsheetssheet2 d1 @i i 2 d2 t Y QL @l c. j L2 v im ,FLgZ .E

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PPARTUS FOR HYDRAULC MASSAGE Fild Jan. 23, 1930 3 Sheets-Sheet 3 Ey. 9 l

Patented Apr. 19, 1932 UNITED STATES PATENT oEFIcE MICHEL PAVLOV, OFPARIS,A FRANCE APPARATUS FOR HYDRAULIC MASSAGE Y Application filedJanuary 23, 1930, Serial No. 422,912, `andin France February 1,2, 1929.

The present invention has for object a process and an apparatus formassage, which comprises a tank adapted to contain'a liquid and toreceive in the midst of this liquid, the patient or the parts Aof thepatients body to be massaged. This process consists in that the pressureof this liquid `is caused to be varied in a rhythmic manner, either inits entire mass, or at least in the portion of this liquid in contactwith the parts of the patients body to be massaged;

`As one of the simplest means for produc- Y 'ing these variations ofpressure, use can be made for instance of plane or like surfaces,apertured or not, immersed in the liquid in proximity to the body, andto whichis imparted a reciprocating displacement in a directionapproximately perpendicular to theirsurface, by any mechanical means,actuated byhand or by a motor, according to a predetermined rhythm.

The vessel used can he of any kind, the liquid can bel ordinary water,mineral water, Sea water, or all kinds of mixtures or solutions.

The accompanying drawings illustrate,`by way of example,'two forms ofcarrying out the subject-matter ofthe invention for the massage of apatient lying in a kind of bath.

Fig.. l is a longitudinalV section of the apparatus.

Fig. 2 is a cross section thereof.

' Fig. 8 is a plan View of the same.

Fig. 4 isla plan view of the control mechanism apartf A Fig. 5 isa planview of the massaging plate.

Fig.v 6 is a longitudinal section thereof. .Y

Figs. 7 l and 8 are partial views showing respectively in elevation andplan view a driving motor.

"Fig 9 is a longitudinal section of the second form of the invention. Y

Fig. 10 is a cross section thereof, made according to line lO-lO of Fig.9.

Fig. 11 shows, on an enlarged scale, a por tion of Fig. 9.

12 is a partial plan view of the plate having an up and down movementserving to periodically vary the pressure of the liquid.

In Figs. 9 and 11, the section is made partly according to the, axis lofthe apparatus and partly through the perforated portions of the plate. Yv f The vessel used in these examples is a bath Y tub, of ordinarydimensions or slightly larger.

The surface in movement is a horizontal board p immersedV in the upperlayers ofthe liquid.V This board receives, either by hand,

Vor by means of a motor, vertical reciprocating K displacements. y

According to Figs. 1 to"6, this board is integral'with two cross memberst1', t2, provided with rods el, 7a2 which can slide inV guides g1 and g2held by diagonal stayscl, c2 n,

on a horizontalV bath tub. A

This framel has a cross member t heldjby Vtwo tie-rods s,L and s2 withnuts di, d2 and a frame arranged above the cross member g resting on twolegs h. These ycross members are connected by rods y1 and y2 providedwith cross bars u1 and u2.. In these cross vmembers and cross-bars isjournalled a crank shaft a, the crank pins lu1 and v2 of which areconnected by connecting rods b1 and`2 to the rods lol, 162. f

The shaft d can be caused to rotate by means of a crank m through themedium of gears al and z2 ensuring a higher speed.

The board p thus receives an up and down reciprocating movement in theliquid, so that the patient lying under this board is subjected torhythmic variations of pressure,l

which effect the required massage.

This board is perforated with orifices o and against it is placed aslidevalve r pro vided with corresponding orifices.

By moving this slide valve, it is possible to control the sectionsofpassage of the'liquid through the board and to thus modify the Epressure to 'board p is slightly different; the shaft a carries, insteadof cranks, cams 1 andthe rods 701, k2 which support the board aresubjected to the action of springs 2 which tend to lift them, and theyeach carry a roller 3 pressed against the underside of thevcorrespondingcam 1. Upon each revolution of the lshaft a, the board p is thus loweredone or several times, according to the shape of the cams, and itisraised each time by the action of the springs 2.

On the other hand, the slide valve r, instead of beingadj ustablysecured to the board y?, is connected to the latter` by a mechanism wlich compels it Ato take a to-'and-fro movement relatively to the board,this movement being combined vwith the up and down'movement of thisboard, so as to vary the section of free passage through the openings@during each vertical stroke of the board. For that purpose, a cam et vismounted on a lugintegral With the crossr member t1 and acts again-st aroller 5 mounted on the slide, valve r, so as to push this slide valvein opposition to the action of a spring 6 which bears against aprojection 7 of the board. This cam is caused yto rotate by a verticalshaft 8 mounted .in

ithe frame g1 when this shaft is coupled with the shaft a by bevelledpinions 9 and 10. l Forallowing the unclutching of this drivingmechanism, on the shaft 8 is provided a ring 11, having an incline andwhich may be caused to rotate. by means of a handle l2 presented byanother ring 13 carried by the frame g1, 'so that the shaft 8 with itspinion 10 can be raised and lowered Vat will for engaging this pinionlO'with the pinion 9 disengaging it therefrom. Y The shaft 8 can, for4that purpose, slide in thev hub 14 of the cam 4:," and it drives thelatter in .its rotation through the medium of a key or of apolyg- :onalportion. i

Theratio of the pinions 9, 10 can vary; if

it is a fraction of the unit, the slide valve ef-- Y fects a singlehorizontal to-and-fro movement the cams on their shafts, on the widthsof the perforated parts and on the intermediate solid parts, etc., sothat it is possible at will, tovary the succession of the pressuresaccording to any desired law.

Antifriction rollers 15 areY providedy for facilitating the displacementof the slide valve r between the board p andthe cross members t1 t2. Onthe other hand, a stop device is provided for holding the slide valvestationaryin anydesired position relatively to the board when the driveis disengaged; for instance, a linger 16 can be secured on the .shaft 8,so as to enter any of the holes 17 prolatter can be lying down, standingo r seated.

l/Vhat is claimed is V.

l. Apparatus for massage comprising aV vessel adapted to contain aliquid and the body to be massaged, a plate movable inthis vessel, thisplate having openings therein, ad-

justable means for obstructing more or less the said openings, anddriving means ladapted to alternately move this plate towardsv th saidbody and in reverse direction.

' 2. Apparatus formassage comprising a vessel adapted to contain` aliquid and the body to be massaged, a plate movable in this vessel, thisplate having openingstherein, ad-

.justable means for obstructing more lor less the said openings, anddriving meansadapted to alternately move this plate towards the saidbody and vin reverse direction, the said plate comprising adjustableelements adapted to increase or to diminish the thrust it ex- 3.Apparatus for massage comprising a lvessel adapted to contain a liquidvand the body to be massaged, a board lmovable in this section of thesaid openings, driving means .erts on the liquid when it isset inmovement. Y

for alternately displacing the saidboard towards the body to be massagedand in reverse direction, and `adjusting means for displacing the saidslide valve on the board, the said adjusting means beingadapted toperiodically move the slide valve in` accordance with each series yofseveral successive movements of the board. f

4. Apparatus for massage.V comprising a vessel adapted to contain aliquidv andthe body to be massaged, a plate movable .in this vessel, anddriving means vadapted toalternately move thisr plate towards the saidbody and in reverse direction anda fsoft network stretched at a smalldistance from the said plate and movable with the latter, this networkbeing adapted to avoid the shocks of the plate against the body to bemassaged.

5. Massage apparatus comprising a receptacle adapted to contain a liquidand the body to be massaged, a perforated plate, ada ted to behorizontally placed in the liquid a ove the body to be massaged,adjustable means for obstructing more or less the openings of the saidplate, and driving means adapted to move this plate alternately upwardlyand downwardly.

6. Massage apparatus comprising a receptacle adapted to contain a liquidand the body to be massaged, an apertured plate adapted to behorizontally placed in the liquid above the body to be massaged, anddriving means adapted to move this plate alternately upwardly anddownwardly, the said plate comprising adjustable elements adapted toInodify the thrust it exerts on the liquid when it is set in motion. c

7. Massage apparatus comprising a receptacle adapted to contain a liquidand the body to be massaged and extending in a substantially horizontalposition, an apertured element in the upper partof the receptacle, thelower surface of this element being substantially horizontal and locatedat a small distance above the body to be massaged7 and means foralternately moving this element upwardly and downwardly.

In testimony whereof I have hereunto af- 53 fixed my signature.

MICHEL PAVLOV.

